Pumps – Three or more cylinders arranged in parallel – radial – or... – Radial cylinders
Patent
1988-08-25
1990-08-28
Smith, Leonard E.
Pumps
Three or more cylinders arranged in parallel, radial, or...
Radial cylinders
417360, 417572, 92161, F04B 104
Patent
active
049521217
ABSTRACT:
The pump comprises a plurality of cylinders (4) disposed radially in a star formation around a shaft (5) with an eccentric (6) in a body (2, 3) formed by first and second members (2, 3) joined together by bolts (13). Each cylinder (4) is clamped in position between the first and second elements (2, 3) of the body between a pair of the said bolts (13). The facing surfaces of each cylinder (4) and of at least one (3) of the members (2, 3) of the pump body are spaced in correspondence with the central portion of the cylinder (4) in which is formed the chamber (9) in which the associated piston (10) is movable, so that the contact between the cylinder (4) and the at least one member (3) of the body (2, 3) of the pump is limited to surfaces outside the central portion of the cylinder (4).
REFERENCES:
patent: 2469998 (1949-05-01), Smith
patent: 2825289 (1958-03-01), Palmer
patent: 4105371 (1978-08-01), Savage et al.
patent: 4151786 (1979-05-01), Hockensmith
patent: 4681514 (1987-07-01), Griese et al.
patent: 4700616 (1987-10-01), Stoll et al.
patent: 4768606 (1988-09-01), Abels et al.
patent: 4776768 (1988-10-01), Kondoh
De Matthaeis Sisto L.
Ricco Mario
Valetto Alessandro
Smith Leonard E.
Weber s.r.l.
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